Figure 1: Concentration of nitric oxide produced by RAW macrophages in presence of pure compounds, assessed by NO assay using sulfanilamide and NED (A: NO assay of compound A; B: NO assay of compound B; C: NO assay of compound C; D: NO assay of compound D; E: NO assay of compound E; F: NO assay of compound F) (*p<0.05 with respect to positive control).